Characteristic | TNM stage | Number of patients |
Stage I (n = 9) | T1N0M0 | 5 |
T2N0M0 | 4 | |
Stage II (n = 14) | T3N0M0 | 14 |
T4aN0M0/T4bN0M0 | 0/0 | |
Stage III (n = 13) | T2N1M0/T2N2M0 | 1/0 |
T3N1M0/T3N2M0 | 4/2 | |
T4abN1M0/T4abN2M0 | 3/3 | |
Stage IV (n = 9) | T2N1M1 | 1 |
T3N0M1/T3N1M1/T3N2M1 | 0/1/4 | |
T4N1M1 | 3 | |
Moderately differentiated | 36 | |
Poorly differentiated | 9 |